Quote: Binned already and built already. Just wondering how this thing could/can be sold. And nobody has a voltmeter?

Could somebody measure the voltages on pins 4 and 8 of the opamps? For me they were +-7.5V. which is too low.   I added an external power supply of +-15V for the opamps only and it was much better.   see here: http://abload.de/img/img_8355bgfluo.jpg     It's a really bad design...

They don't read any datasheets   DIR9001: "if the DIR9001 is used only for recovering the clock and decoding data from the biphase input signal, an XTI clock source is not required. In this case, the XTI pin must be connected to the DGND pin. (The DIR9001 does not have a selection pin for...

Sorry double posting

I think that thing is broken by design. I measure +7.5 and -6.5 supply voltage at the opamps, so they are overdriven regularly. I built a +-15V external supply for them. Sounds much better now.    Or do you measure other voltages? I wonder how you can reasonably power the opamps from a...